After looking at several hatchery and supply catalogs,anywhere between 200-600 dollars.I don't know why anyone would buy something like this when,with minimum carpentry skills,you can build one using mostly scrap and salvaged materials.
Just look how much a small coup for 5-6 hens would cost you to buy.Or those feeders or waterers or any other manufactured accessories.It's crazy!!I get dizzy looking at those catalogs.
Anfy J